Remove useless from parameter in mailers

We already defined a default one in
ApplicationMailer

app/mailers/gestionnaire_mailer.rb

@@ -18,7 +18,6 @@ class GestionnaireMailer < ApplicationMailer
   def send_mail email, args, subject
     vars_mailer email, args
 
-    mail(from: "tps@apientreprise.fr", to: email,
-         subject: subject)
+    mail(to: email, subject: subject)
   end
 end

app/mailers/invite_mailer.rb

@@ -19,8 +19,7 @@ class InviteMailer < ApplicationMailer
   end
 
   def send_mail email, subject, reply_to
-    mail(from: "tps@apientreprise.fr",
-         to: email,
+    mail(to: email,
          subject: subject,
          reply_to: reply_to)
   end

app/mailers/new_admin_mailer.rb

@@ -4,7 +4,7 @@ class NewAdminMailer < ApplicationMailer
     @admin = admin
     @password = password
 
-    mail(from: "tps@apientreprise.fr", to: 'tech@apientreprise.fr',
+    mail(to: 'tech@apientreprise.fr',
          subject: "Création d'un compte Admin TPS")
   end
 end

app/mailers/notification_mailer.rb

@@ -1,6 +1,5 @@
 class NotificationMailer < ApplicationMailer
-  default from: 'tps@apientreprise.fr',
-          to:  Proc.new { @user.email }
+  default to: Proc.new { @user.email }
 
   def send_notification dossier, mail_template
     vars_mailer(dossier)

app/mailers/welcome_mailer.rb

@@ -3,7 +3,7 @@ class WelcomeMailer < ApplicationMailer
 
     @user = user
 
-    mail(from: "tps@apientreprise.fr", to: user.email,
+    mail(to: user.email,
          subject: "Création de votre compte TPS")
   end
 end